9 Speed Cassettes ( Sram and Shimano )

sram pg 970, pg 930 and shimano xt m770, m760 used cassettes, all still in great shape . all are 34t - 11t except the pg 930 which is 32t - 11t. the xt's are considerably light at 290 gram compared to the sram at 370 and 400 grams. the m770 and m760 cassettes are almost identical to each other except the 770 has an aluminum lockring to the 760 steel one. the 770 also has small studs on the spider pointing in towards the spokes, to catch the chain if it ever derails. $20 for the sram, the xt's I'll need $30 each.